# It might be ORM problem **URL:** \ **Category:** rubyonrails-talk\ **Created:** [July 12, 2008, 9:26am UTC](https://discuss.rubyonrails.org/t/it-might-be-orm-problem/31755 "2008-07-12T09:26:15Z")\ **Posts on this page:** 11\ **Page:** 1
**Author:** ![sadathiru](https://avatars.discourse-cdn.com/v4/letter/s/ce7236/32.png) [@sadathiru](https://discuss.rubyonrails.org/u/sadathiru)\ **Post date:** [July 12, 2008, 9:26am UTC](https://discuss.rubyonrails.org/t/it-might-be-orm-problem/31755/1 "2008-07-12T09:26:15Z")
Hi,    I have a model user.rb, a controller userdata\_controller, methods in the controller and respective .rhtml files. I created a registration page. Saved into users table and it works fine. But sometimes its throwing error as undefined method `city=' for #\ c:/ruby/lib/ruby/gems/1.8/gems/activerecord-2.1.0/lib/active\_record/ attribute\_methods.rb:251:in `method_missing' c:/ruby/lib/ruby/gems/1.8/gems/activerecord-2.1.0/lib/active_record/ base.rb:2361:in `send' c:/ruby/lib/ruby/gems/1.8/gems/activerecord-2.1.0/lib/active\_record/ base.rb:2361:in `attributes=' c:/ruby/lib/ruby/gems/1.8/gems/activerecord-2.1.0/lib/active_record/ base.rb:2360:in `each' c:/ruby/lib/ruby/gems/1.8/gems/activerecord-2.1.0/lib/active\_record/ base.rb:2360:in `attributes=' c:/ruby/lib/ruby/gems/1.8/gems/activerecord-2.1.0/lib/active_record/ base.rb:2130:in `initialize' app/controllers/matrimony\_controller.rb:124:in `new' app/controllers/matrimony_controller.rb:124:in `useraccount' -e:2:in `load' -e:2 It assumes that there is no field 'city' in table users. I confused a lot. It is never working until i restart my mongrel. I am not able to predict, when the problem rises. Any idea? Help me.. Thanks, -Sadeesh kumar. ---
**Author:** ![sadathiru](https://avatars.discourse-cdn.com/v4/letter/s/ce7236/32.png) [@sadathiru](https://discuss.rubyonrails.org/u/sadathiru)\ **Post date:** [July 12, 2008, 12:27pm UTC](https://discuss.rubyonrails.org/t/it-might-be-orm-problem/31755/2 "2008-07-12T12:27:26Z")
Hi Matthew, > Does the `users` table have a `city` column? Yes,   My table have 'city' column. and i am able to save user data, when he do registration.This problem occurs on only at particular scenario.Just now I found a scenario, Which is 1.When i try to go to (action)registration page by clicking the link, then the registration process works well. 2.When i try to go to same (action)registration page by redirecting from another action(based on condition whether the user has logged in or not), then the registration process fails when i do save the user. > What does the User model look like? user.rb ---
**Author:** ![Andrew\_Roth](https://sea2.discourse-cdn.com/rubyonrails/user_avatar/discuss.rubyonrails.org/andrew_roth/32/11579_2.png) [@Andrew\_Roth](https://discuss.rubyonrails.org/u/Andrew_Roth)\ **Post date:** [July 12, 2008, 2:38pm UTC](https://discuss.rubyonrails.org/t/it-might-be-orm-problem/31755/3 "2008-07-12T14:38:27Z")
Do you see anything in the log file when it gives undefined method that might give a clue? What deployment system are you using? Try running webrick and test there, if the problem doesn't happen, then it's probably something with your production deployment. ---
**Author:** ![Andrew\_Roth](https://sea2.discourse-cdn.com/rubyonrails/user_avatar/discuss.rubyonrails.org/andrew_roth/32/11579_2.png) [@Andrew\_Roth](https://discuss.rubyonrails.org/u/Andrew_Roth)\ **Post date:** [July 12, 2008, 2:46pm UTC](https://discuss.rubyonrails.org/t/it-might-be-orm-problem/31755/4 "2008-07-12T14:46:17Z")
> 1.When i try to go to (action)registration page by clicking the link, then the registration process works well. 2.When i try to go to same (action)registration page by redirecting from another action(based on condition whether the user has logged in or not), then the registration process fails when i do save the user. Hmm, that's strange. The only thing I can think of is that the redirection is setting a session variable or cookie or some other persistent data that's messing up the process. ---
**Author:** ![sadathiru](https://avatars.discourse-cdn.com/v4/letter/s/ce7236/32.png) [@sadathiru](https://discuss.rubyonrails.org/u/sadathiru)\ **Post date:** [July 12, 2008, 2:55pm UTC](https://discuss.rubyonrails.org/t/it-might-be-orm-problem/31755/5 "2008-07-12T14:55:47Z")
No roth,     Problem comes with webrick also. And i am in development mode only. I could found the below one in my log file, NoMethodError (undefined method `city=' for #\):     c:/ruby/lib/ruby/gems/1.8/gems/activerecord-2.1.0/lib/ active_record/attribute_methods.rb:251:in `method\_missing'     c:/ruby/lib/ruby/gems/1.8/gems/activerecord-2.1.0/lib/ active\_record/base.rb:2361:in `send'     c:/ruby/lib/ruby/gems/1.8/gems/activerecord-2.1.0/lib/ active_record/base.rb:2361:in `attributes='     c:/ruby/lib/ruby/gems/1.8/gems/activerecord-2.1.0/lib/ active\_record/base.rb:2360:in `each'     c:/ruby/lib/ruby/gems/1.8/gems/activerecord-2.1.0/lib/ active_record/base.rb:2360:in `attributes='     c:/ruby/lib/ruby/gems/1.8/gems/activerecord-2.1.0/lib/ active\_record/base.rb:2130:in `initialize'     /app/controllers/matrimony_controller.rb:124:in `new'     /app/controllers/matrimony\_controller.rb:124:in `useraccount'     c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.1.0/lib/ action_controller/base.rb:1162:in `send'     c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.1.0/lib/ action\_controller/base.rb:1162:in `perform_action_without_filters'     c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.1.0/lib/ action_controller/filters.rb:580:in `call\_filters'     c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.1.0/lib/ action\_controller/filters.rb:573:in `perform_action_without_benchmark'     c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.1.0/lib/ action_controller/benchmarking.rb:68:in `perform\_action\_without\_rescue'     c:/ruby/lib/ruby/1.8/benchmark.rb:293:in `measure'     c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.1.0/lib/ action_controller/benchmarking.rb:68:in `perform\_action\_without\_rescue'     c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.1.0/lib/ action\_controller/rescue.rb:201:in `perform_action_without_caching'     c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.1.0/lib/ action_controller/caching/sql_cache.rb:13:in `perform\_action'     c:/ruby/lib/ruby/gems/1.8/gems/activerecord-2.1.0/lib/ active\_record/connection\_adapters/abstract/query\_cache.rb:33:in `cache'     c:/ruby/lib/ruby/gems/1.8/gems/activerecord-2.1.0/lib/ active_record/query_cache.rb:8:in `cache'     c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.1.0/lib/ action\_controller/caching/sql\_cache.rb:12:in `perform_action'     c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.1.0/lib/ action_controller/base.rb:529:in `send'     c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.1.0/lib/ action\_controller/base.rb:529:in `process_without_filters'     c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.1.0/lib/ action_controller/filters.rb:569:in `process\_without\_session\_management\_support'     c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.1.0/lib/ action\_controller/session\_management.rb:130:in `process'     c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.1.0/lib/ action_controller/base.rb:389:in `process'     c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.1.0/lib/ action\_controller/dispatcher.rb:149:in `handle_request'     c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.1.0/lib/ action_controller/dispatcher.rb:107:in `dispatch'     c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.1.0/lib/ action\_controller/dispatcher.rb:104:in `synchronize'     c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.1.0/lib/ action_controller/dispatcher.rb:104:in `dispatch'     c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.1.0/lib/ action\_controller/dispatcher.rb:120:in `dispatch_cgi'     c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.1.0/lib/ action_controller/dispatcher.rb:35:in `dispatch'     c:/ruby/lib/ruby/gems/1.8/gems/rails-2.1.0/lib/webrick\_server.rb: 112:in `handle_dispatch'     c:/ruby/lib/ruby/gems/1.8/gems/rails-2.1.0/lib/webrick_server.rb: 78:in `service'     c:/ruby/lib/ruby/1.8/webrick/httpserver.rb:104:in `service'     c:/ruby/lib/ruby/1.8/webrick/httpserver.rb:65:in `run'     c:/ruby/lib/ruby/1.8/webrick/server.rb:173:in `start_thread'     c:/ruby/lib/ruby/1.8/webrick/server.rb:162:in `start'     c:/ruby/lib/ruby/1.8/webrick/server.rb:162:in `start_thread'     c:/ruby/lib/ruby/1.8/webrick/server.rb:95:in `start'     c:/ruby/lib/ruby/1.8/webrick/server.rb:92:in `each'     c:/ruby/lib/ruby/1.8/webrick/server.rb:92:in `start'     c:/ruby/lib/ruby/1.8/webrick/server.rb:23:in `start'     c:/ruby/lib/ruby/1.8/webrick/server.rb:82:in `start'     c:/ruby/lib/ruby/gems/1.8/gems/rails-2.1.0/lib/webrick\_server.rb: 62:in `dispatch'     c:/ruby/lib/ruby/gems/1.8/gems/rails-2.1.0/lib/commands/servers/ webrick.rb:66     c:/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in `gem\_original\_require'     c:/ruby/lib/ruby/site\_ruby/1.8/rubygems/custom\_require.rb:27:in `require'     c:/ruby/lib/ruby/gems/1.8/gems/activesupport-2.1.0/lib/ active_support/dependencies.rb:509:in `require'     c:/ruby/lib/ruby/gems/1.8/gems/activesupport-2.1.0/lib/ active\_support/dependencies.rb:354:in `new_constants_in'     c:/ruby/lib/ruby/gems/1.8/gems/activesupport-2.1.0/lib/ active_support/dependencies.rb:509:in `require'     c:/ruby/lib/ruby/gems/1.8/gems/rails-2.1.0/lib/commands/server.rb: 39     c:/ruby/lib/ruby/site\_ruby/1.8/rubygems/custom\_require.rb:27:in `gem_original_require'     c:/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in `require'     ./script/server:3     -e:2:in `load'     -e:2 Rendering c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.1.0/lib/ action\_controller/templates/rescues/layout.erb (internal\_server\_error) my scenarios are this, 1.When i try to go to (action)registration page by clicking the link, then the registration process works well. 2.When i try to go to same (action)registration page by redirecting from another action(based on condition whether the user has logged in or not), then the registration process fails when i do save the user.    If i follow the first scenario, no problem.    If i follow the second scenario, problem rises.    If i follow the first scenario after did the second scenario, problem rises still. Looking for your billion dollar answer. Thanks, -Sadeesh ---
**Author:** ![sadathiru](https://avatars.discourse-cdn.com/v4/letter/s/ce7236/32.png) [@sadathiru](https://discuss.rubyonrails.org/u/sadathiru)\ **Post date:** [July 12, 2008, 2:58pm UTC](https://discuss.rubyonrails.org/t/it-might-be-orm-problem/31755/6 "2008-07-12T14:58:35Z")
my scenarios are this, 1.When i try to go to (action)registration page by clicking the link, then the registration process works well. 2.When i try to go to same (action)registration page by redirecting from another action(based on condition whether the user has logged in or not), then the registration process fails when i do save the user.    start the server and If i follow the first scenario, no problem.    restart the server and If i follow the second scenario, problem rises.    restart the server and If i follow the first scenario after did the second scenario, problem rises still. Looking for your billion dollar answer. Thanks, -Sadeesh ---
**Author:** ![Frederick\_Cheung](https://sea2.discourse-cdn.com/rubyonrails/user_avatar/discuss.rubyonrails.org/frederick_cheung/32/3901_2.png) [@Frederick\_Cheung](https://discuss.rubyonrails.org/u/Frederick_Cheung)\ **Post date:** [July 12, 2008, 6:57pm UTC](https://discuss.rubyonrails.org/t/it-might-be-orm-problem/31755/7 "2008-07-12T18:57:42Z")
> my scenarios are this, 1.When i try to go to (action)registration page by clicking the link, then the registration process works well. 2.When i try to go to same (action)registration page by redirecting from another action(based on condition whether the user has logged in or not), then the registration process fails when i do save the user. Does it go away if you change cache\_classes to true in development.rb? Fred ---
**Author:** ![sadathiru](https://avatars.discourse-cdn.com/v4/letter/s/ce7236/32.png) [@sadathiru](https://discuss.rubyonrails.org/u/sadathiru)\ **Post date:** [July 14, 2008, 5:57am UTC](https://discuss.rubyonrails.org/t/it-might-be-orm-problem/31755/8 "2008-07-14T05:57:37Z")
Hi Frederick,        First of all thanks for your reply.Your answer is great and it resolved my problem partially for the below one. -----8\<------- > my scenarios are this, 1.When i try to go to (action)registration page by clicking the link, then the registration process works well. 2.When i try to go to same (action)registration page by redirecting from another action(based on condition whether the user has logged in or not), then the registration process fails when i do save the user. Does it go away if you change cache\_classes to true in development.rb? Fred ------\>8-------- Yes, it gets away after I made cache\_classes = true in development.rb. But it has been fixed partially. Now what is the real problem is, 1.If I follow the first scenario as usual no problem and if I continue the second scenario, it works(because of your suggestion). 2.If I directly do the second scenario, problem rises and If I continue the first one then also problem rises. I could able to do nothing then after. Can you explain me why? looking for your reply Frederick, Thanks, -Sadeesh kumar. ---
**Author:** ![Frederick\_Cheung](https://sea2.discourse-cdn.com/rubyonrails/user_avatar/discuss.rubyonrails.org/frederick_cheung/32/3901_2.png) [@Frederick\_Cheung](https://discuss.rubyonrails.org/u/Frederick_Cheung)\ **Post date:** [July 14, 2008, 7:17am UTC](https://discuss.rubyonrails.org/t/it-might-be-orm-problem/31755/9 "2008-07-14T07:17:22Z")
> Yes, it gets away after I made cache\_classes = true in development.rb. But it has been fixed partially. Now what is the real problem is, > > 1.If I follow the first scenario as usual no problem and if I continue the second scenario, it works(because of your suggestion). 2.If I directly do the second scenario, problem rises and If I continue the first one then also problem rises. I could able to do nothing then after. This means you are confusing the dependencies mechanism. This usually means that either: - You have got plugins hanging on to references to one of your model classes or instances of it - You're explicitly requiring a class (ie using require), which sidesteps rails' dependency stuff. Fred ---
**Author:** ![sadathiru](https://avatars.discourse-cdn.com/v4/letter/s/ce7236/32.png) [@sadathiru](https://discuss.rubyonrails.org/u/sadathiru)\ **Post date:** [July 14, 2008, 8:42am UTC](https://discuss.rubyonrails.org/t/it-might-be-orm-problem/31755/10 "2008-07-14T08:42:32Z")
Fred,     I am using only one plugin simple\_captcha. And I never explicitly requiring a class in my app.    Now I am in new problem which is I am having model profile.rb and table named profiles. If I tend to do like below,    current\_profile = Profile.new("from\_user\_id" =\> session[:user\_id],"to\_user\_id" =\> 5)    current\_profile.save    then it throws similar problem,     NoMethodError in MatrimonyController#forwardprofiles undefined method `to\_user\_id=' for #\ c:/ruby/lib/ruby/gems/1.8/gems/activerecord-2.1.0/lib/active\_record/ attribute\_methods.rb:251:in `method_missing' c:/ruby/lib/ruby/gems/1.8/gems/activerecord-2.1.0/lib/active_record/ base.rb:2361:in `send' c:/ruby/lib/ruby/gems/1.8/gems/activerecord-2.1.0/lib/active\_record/ base.rb:2361:in `attributes=' c:/ruby/lib/ruby/gems/1.8/gems/activerecord-2.1.0/lib/active_record/ base.rb:2360:in `each' c:/ruby/lib/ruby/gems/1.8/gems/activerecord-2.1.0/lib/active\_record/ base.rb:2360:in `attributes=' c:/ruby/lib/ruby/gems/1.8/gems/activerecord-2.1.0/lib/active_record/ base.rb:2130:in `initialize' app/controllers/matrimony\_controller.rb:52:in `new' app/controllers/matrimony_controller.rb:52:in `forwardprofiles' app/controllers/matrimony\_controller.rb:49:in `each' app/controllers/matrimony_controller.rb:49:in `forwardprofiles' -e:2:in `load' -e:2 By comparing this with the previous one, do you have any Idea? Thanks, -Sadeesh. ---
**Author:** ![sadathiru](https://avatars.discourse-cdn.com/v4/letter/s/ce7236/32.png) [@sadathiru](https://discuss.rubyonrails.org/u/sadathiru)\ **Post date:** [July 14, 2008, 11:15am UTC](https://discuss.rubyonrails.org/t/it-might-be-orm-problem/31755/11 "2008-07-14T11:15:11Z")
k Matthew,       I do the same. Thanks, -Sadeesh.